Mirror transmission method
A mirroring transmission method is provided. The present method retrieves image frames and audio signals of a transmitter and transmits the retrieved image frames and retrieved audio signals to a receiver to be displayed wirelessly. In the meantime, the present method monitors status of a network connected with the transmitter and the receiver, and determines if the network is stable or not. Also, the method stops retrieving and transmitting the audio signal from the transmitter to the receiver, and controls the transmitter to display the audio signal directly through an internal audio module whenever the network is determined unstable.
1. A method for mirror transmission used for a transmitter electronic device and a receiver electronic device wirelessly connected with a network, the method comprising:
a) retrieving an image frame at the transmitter electronic device and sending the image frame to the receiver electronic device to be played;
b) retrieving an audio signal from the transmitter electronic device and sending the audio signal to the receiver electronic device to be played, and controlling the transmitter electronic device to stop playing the audio signal;
c) determining whether a status of the network being stable;
d) stopping retrieving the audio signal at the transmitter electronic device and controlling the audio signal to be played directly at the transmitter electronic device when the network is unstable; and
e) keeping retrieving the image frame at the transmitter electronic device and sending the image frame to the receiver electronic device to be played when the network is unstable.
2. The mirror transmission method of claim 1 , wherein the step c) is performed by determining the status of the network being unstable if a transmission time of the image frame or the audio signal is larger than a first threshold time and an exceeded count is larger than a first predetermined count.
3. The mirror transmission method of claim 2 , wherein the transmission time is the time for the transmitter electronic device transmitting the image frame or the audio signal to the receiver electronic device and receiving a response signal from the receiver electronic device.
4. The mirror transmission method of claim 1 , further comprising:
f) adjusting a retrieving quality and a retrieving frequency of the image frame when the status of the network is unstable;
g) adjusting a transmission frequency for transmitting the image frame to the receiver electronic device when the status of the network is unstable; and
h) performing the step a) according to at least one of the adjusted retrieving quality, the adjusted retrieving frequency and the adjusted transmission frequency.
5. The mirror transmission method of claim 4 , further comprising:
i) determining whether the status of the network being improved after the step h); and
j) performing the steps from the step f) to the step h) again to re-adjust the adjusted retrieving quality, the adjusted retrieving frequency and the adjusted transmission frequency if the status of the network is not improved.
6. The mirror transmission method of claim 4 , further comprising:
k) determining whether the status of the network being recovered stable after the step h); and
l) recovering the adjusted retrieving quality, the adjusted retrieving frequency and the adjusted transmission frequency to an initial value when the status of the network being recovered stable.
7. The mirror transmission method of claim 1 , further comprising:
m) determining whether the status of the network being recovered stable after the step d); and
n) controlling the transmission electronic device to stop playing the audio signal when the status of the network being recovered stable and recovering to retrieve the audio signal at the transmitter electronic device and sending the audio signal to the receiver electronic device.
8. The mirror transmission method of claim 6 , wherein the step k) is performed to determine the status of the network being recovered stable when a transmission time of the image frame or the audio signal is smaller than a second threshold time and a smaller count is larger than a second predetermined count.
9. The mirror transmission time of claim 7 , wherein the step m) is performed to determine the status of the network being recovered stable when a transmission time of the image frame or the audio signal is smaller than a second threshold time and a smaller count is larger than a second predetermined count.
10. The mirror transmission method of claim 1 , wherein the receiver electronic device has a display unit for playing the image frame, and the transmitter electronic device has a display module, wherein the display unit has a larger size than the display module.
11. The mirror transmission method of claim 1 , wherein the receiver electronic device is electrically connected to a display device having a display unit for playing the image frame, and the transmitter electronic device has a display module, wherein the size of the display unit is larger than the size of the display module.